I have a dw 14 which i flashed ages ago to a dru 510, have had no problems until now ( 2 years) drive has burnt around 150 cd/dvd in its life.
What does work: cdr and cdrw, dvd-r, dvd+r, erasing and re writting existing dvd-rw and dvd+rw.
what doesn't work - cannot use new dvd rw + or-, formatting fails, tried formatting in a friends burner then on mine, when erasing I get power cal failure.
I upgraded to 1.1a firmware, did this in accordance with sony instructionsie intel accelerator off dma off.
Have tried these new disks( various makes including maxell and packard bell) with different combos of dma on/off,accelerator on/off.
Have not needed to burn a dvd rw for a year during which time significant changes to my system due to 200gb drive installation, I don't know if I have a hardware problem or a build problem.Using nero 6.6 have also re-installed this, nero reports aspi files ok. Is the format info in the firmware or in my OS, or nero Ihave no idea. help appreciated